﻿<!DOCTYPE html>
<html>
<head>
  <title>Orthogonal Link Reshaping Tool</title>
  <!-- Copyright 1998-2020 by Northwoods Software Corporation. -->
  <meta name="description" content="An elaboration of the standard LinkReshapingTool that adds a broad handle to allow the user to easily drag a segment." />
  <meta name="viewport" content="width=device-width, initial-scale=1">

  <script src="../release/go.js"></script>
  <script src="OrthogonalLinkReshapingTool.js"></script>
  <script src="../assets/js/goSamples.js"></script>  <!-- this is only for the GoJS Samples framework -->
  <script id="code">
    function init() {
      if (window.goSamples) goSamples();  // init for these samples -- you don't need to call this
      var $ = go.GraphObject.make;

      myDiagram =
        $(go.Diagram, "myDiagramDiv",
          {
            "undoManager.isEnabled": true,
            "linkReshapingTool": new OrthogonalLinkReshapingTool()
          });

      myDiagram.nodeTemplate =
        $(go.Node, "Auto",
          {
            width: 80,
            height: 50,
            locationSpot: go.Spot.Center
          },
          new go.Binding("location", "location", go.Point.parse).makeTwoWay(go.Point.stringify),
          $(go.Shape, { fill: "lightgray" }),
          $(go.TextBlock, { margin: 10 },
            new go.Binding("text", "key"))
        );

      myDiagram.linkTemplate =
        $(go.Link,
          {
            routing: go.Link.AvoidsNodes,
            reshapable: true,
            resegmentable: true
          },
          new go.Binding("points").makeTwoWay(),
          $(go.Shape, { strokeWidth: 2 })
        );

      myDiagram.model = new go.GraphLinksModel([
        { key: "Alpha", location: "0 0" },
        { key: "Beta", location: "200 0" },
        { key: "Gamma", location: "100 0" }
      ], [
          { from: "Alpha", to: "Beta" }
        ]);

      myDiagram.addDiagramListener("InitialLayoutCompleted", function(e) {
        // select the Link in order to show its two additional Adornments, for shifting the ends
        myDiagram.links.first().isSelected = true;
      });
    }

    function updateRouting() {
      var routing = getRadioValue("routing");
      var newRouting = (routing === "orthogonal") ? go.Link.Orthogonal : go.Link.AvoidsNodes;
      myDiagram.startTransaction("update routing");
      myDiagram.linkTemplate.routing = newRouting;
      myDiagram.links.each(function(l) {
        l.routing = newRouting;
      });
      myDiagram.commitTransaction("update routing");
    }

    function getRadioValue(name) {
      var radio = document.getElementsByName(name);
      for (var i = 0; i < radio.length; i++)
        if (radio[i].checked) return radio[i].value;
    }
  </script>
</head>
<body onload="init()">
<div id="sample">
  <div id="myDiagramDiv" style="border: solid 1px black; width:100%; height:600px"></div>
  Routing:
        <input type="radio" name="routing" onclick="updateRouting()" value="orthogonal" />Orthogonal
        <input type="radio" name="routing" onclick="updateRouting()" value="avoidsnodes" checked="checked" />AvoidsNodes
  <p>
    This sample demonstrates the OrthogonalLinkReshapingTool that is defined in its own file, as <a href="OrthogonalLinkReshapingTool.js">OrthogonalLinkReshapingTool.js</a>.
    This tool allow users to shift the sections of orthogonal links in addition to resegmenting them.
    The Diagram's <a>ToolManager.linkReshapingTool</a> and link template's <a>Part.reshapable</a> properties must be set to use this tool.
    The <a>Link.resegmentable</a> property can still optionally be used.
  </p>
</div>
</body>
</html>